Novel ultrathin projection lamp

Abstract

The utility model discloses a novel ultrathin projection lamp which comprises a shell and a circuit board arranged in the shell, a plurality of lamp beads are arranged on the circuit board, and the novel ultrathin projection lamp is characterized in that the shell is provided with a hollow-out part, the circuit board is arranged on the back face of the shell, a heat dissipation structure is arranged on the back face of the circuit board, and all the lamp beads are located in the hollow-out part. The shell of the novel ultrathin projection lamp is provided with the hollowed-out part, the circuit board is located on the back face of the shell, all the lamp beads are located on the hollowed-out part, and the heat dissipation structure is directly arranged on the back face of the circuit board, so that the heat conduction link is reduced, the heat resistance is lower, heat dissipation is facilitated, the heat dissipation effect of the projection lamp is better, and meanwhile the projection lamp is thinner.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp technical field, concretely relates to a novel super thin light projector. BACKGROUND

[0002] The light projector is the light fixture that the illumination on the designated illuminated surface is higher than the surrounding environment, for example, the Chinese utility model patent no. CN202420435376.4 discloses a LED light projector, including the main casing, the front side of main casing is provided with the mounting seat and is covered by the front cover, the front cover and mounting seat constitute the installation cavity, the installation cavity is arranged with the light emitting module, the rear side of main casing is regularly arranged with a plurality of radiating fins, the radiating fin is integrally formed with the main casing, the main casing below the radiating fin is provided with the drive bin, the drive bin is installed with the drive power supply and control circuit board, the drive bin is covered by the rear cover, the surface of main casing is provided with a plurality of radiating holes, the radiating hole is located at the outer periphery of mounting seat, the radiating hole is long and narrow structure, the radiating hole penetrates the front cover.

[0003] The heat dissipation structure of this light projector is mostly arranged at the back of the casing, the heat is transferred from the lamp bead and the circuit board to the casing, and then to the casing for heat dissipation, the heat conduction link is more, the heat dissipation effect is poor, the thermal resistance is higher, and the light projector is thicker. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the background art, the utility model wants to solve the technical problem to provide a novel super thin light projector with better heat dissipation effect.

[0005] Therefore, the utility model is adopted with the following technical scheme to realize:

[0006] A novel super thin light projector, including the casing and the circuit board arranged in the casing, a plurality of lamp beads are arranged on the circuit board, characterized by: the casing has a hollow part, the circuit board is arranged at the back of the casing, and the back of the circuit board is provided with a heat dissipation structure, and all the lamp beads are located in the hollow part.

[0007] Further, the heat dissipation structure includes a radiating fin bonded with the circuit board, the radiating fin is provided with a plurality of upward protruding ribs, the first ventilation channel is formed between the adjacent ribs, the radiating fin is provided with a radiating through hole along the length direction, and the second ventilation channel is formed by the radiating through hole.

[0008] Further, the outer ring of the circuit board is bonded with the back of the casing by glue, the front of the casing is provided with a recess for placing the power supply and the wire, the casing is provided with a terminal block inserted into the recess, the terminal block is provided with a wire hole, and the front of the casing is bonded with a light-transmitting plate covering the hollow part and the recess by glue.

[0009] Further, the part of the light-transmitting plate corresponding to the groove is coated with colored paint that can cover the groove and its internal structure, the shell is detachably connected with a ring panel exposing the hollow part, the shell is provided with a plurality of clamping grooves, and the ring panel is provided with buckles clamped into the clamping grooves.

[0010] Further, the back of the shell is bonded with the light-transmitting plate through glue, the outer ring of the circuit board is bonded with the back of the light-transmitting plate through glue, and the back of the shell is provided with a groove for placing a power supply and wires, and the groove is provided with a cover.

[0011] Further, the groove is provided with a shallow glue groove, the lower end of the cover is provided with a long insertion piece that can be inserted into the shallow glue groove, the long insertion piece is provided with a wire seat, the wire seat is provided with a wire hole, and the shell is provided with an opening for accommodating the wire seat.

[0012] Further, the groove is provided with a shallow glue groove, the lower end of the cover is provided with a long insertion piece that can be inserted into the shallow glue groove, the long insertion piece is provided with a wire seat, the wire seat is provided with a wire hole, and the shell is provided with an opening for accommodating the wire seat.

[0013] Further, the groove is provided with a deep glue groove, the lower end of the cover is provided with a short insertion piece that can be inserted into the deep glue groove, the shell is provided with a wire seat, and the wire seat is provided with a wire hole.

[0014] Further, the shell is provided with a surrounding plate surrounding the heat dissipation structure, the surrounding plate is provided with air holes communicating with the heat dissipation structure, the surrounding plate and the heat dissipation fins have a gap, and the two sides of the surrounding plate away from the air holes are provided with drainage holes.

[0015] Further, the heat dissipation fins are integrally formed metal fins, the convex strips are straight strips or wavy strips, the shell is a non-metal frame, the circuit board is an aluminum substrate, the aluminum substrate is composed of a conductive layer, an insulating layer and an aluminum plate from top to bottom, and the heat dissipation fins and the aluminum plate are welded by laser.

[0016] After the above technical scheme is adopted, the shell has a hollow part, the circuit board is located at the back of the shell, all the lamp beads are located in the hollow part, and the heat dissipation structure is directly arranged at the back of the circuit board, so that the heat conduction link is reduced, the thermal resistance is lower, heat dissipation is facilitated, the heat dissipation effect of the projection lamp is better, and the thickness of the projection lamp is thinner. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model discloses a following drawing:

[0018] Figure 1 It is the three-dimensional structure schematic diagram of first kind of embodiment of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of another view of first kind of embodiment of the utility model;

[0020] Figure 3 The third embodiment of the utility model is a perspective structural schematic view of the cover being opened.

[0021] Figure 4 The second embodiment of the utility model is a perspective structural schematic view of the cover being opened.

[0022] Figure 5 The third embodiment of the utility model is a perspective structural schematic view of the cover being opened.

[0023] Figure 6 The fourth embodiment of the utility model is a perspective structural schematic view of the cover being opened.

[0024] The drawing mark: 1, the shell; 2, the circuit board; 3, the lamp pearl; 4, the hollow part; 5, the fin; 6, the convex strip; 7, the heat dissipation through-hole; 8, the recess; 9, the wiring seat; 10, the threading hole; 11, the light transmission plate; 12, the cover; 13, the shallow glue groove; 14, the long insert piece; 15, the opening; 16, the pressing plate; 17, the deep glue groove; 18, the short insert piece; 19, the coaming; 20, the air hole; 21, the clamping groove; 22, the drain hole. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0026] Referring to the drawings shown above, the utility model provides a kind of novel ultra-thin projection lamp, including shell 1 and the circuit board 2 in shell 1, and the circuit board 2 is equipped with several lamp pearls 3, its characterized in that: the shell 1 has hollow part 4, the circuit board 2 is located at the back of shell 1, and the back of circuit board 2 is equipped with heat dissipation structure, all lamp pearls 3 are located in hollow part 4, and the heat dissipation structure includes the fin 5 bonded with circuit board 2, the fin 5 is equipped with several upward convex convex strips 6, first air passage is formed between adjacent convex strips 6, the convex strip 6 is provided with heat dissipation through-hole 7 along its length direction, and heat dissipation through-hole 7 forms second air passage, the fin 5 is integrally formed metal sheet, the convex strip 6 is straight strip or wave shape, the shell 1 is non-metal frame, the circuit board 2 is aluminum base plate, and aluminum base plate is composed of conductive layer, insulating layer and aluminum plate from top to bottom, and the fin 5 and aluminum plate are welded by laser.

[0027] In the embodiment, the shell 1 has a hollow part 4, the circuit board 2 is located at the back of the shell 1, all the lamp beads 3 are located in the hollow part 4, and the heat dissipation structure is directly arranged at the back of the circuit board 2, so that the heat conduction link is reduced, the thermal resistance is lower, heat dissipation is facilitated, the heat dissipation effect of the light projector is better, the thickness of the light projector is thinner, the first ventilation channel and the second ventilation channel greatly increase the contact area with air and wind flow, the heat dissipation structure quickly dissipates the heat generated by the lamp beads 3, so that the lamp beads 3 are rapidly cooled, the heat dissipation effect is better, light decay is reduced, and the service life of the light projector is prolonged; the heat dissipation fins 5 are integrally formed metal sheets, heat conduction and heat dissipation are more uniform; the wave-shaped convex strips 6 can increase the contact area with air and wind flow, and further improve the heat dissipation effect; the heat dissipation fins 5 and the aluminum plate are laser welded, the two directly contact, the heat conduction link is further reduced, and the heat dissipation effect of the light projector is better.

[0028] Referring to Figures 1-3 As shown in FIG. 1, it is a first embodiment of the utility model, the outer circle of the circuit board 2 is bonded with the back of the shell 1 through glue, the front of the shell 1 is provided with a groove 8 for placing power supply and wire, the shell 1 is provided with a terminal block 9 inserted into the groove 8, the terminal block 9 is provided with a wire hole 10, and the front of the shell 1 is bonded with a light-transmitting plate 11 covering the hollow part 4 and the groove 8 through glue, the part of the light-transmitting plate 11 corresponding to the groove 8 is coated with colored paint capable of covering the groove 8 and the internal structure thereof, so that the light projector is more beautiful, and the shell 1 is detachably connected with a circle face plate exposing the hollow part 4, a plurality of clamping grooves 21 are arranged around the shell 1, the circle face plate is provided with buckles clamped into the clamping grooves 21, and the circle face plate can be selected by users with different requirements, so that the applicability is stronger.

[0029] Referring to Figure 4 As shown in FIG. 2, it is a second embodiment of the utility model, the back of the shell 1 is bonded with a light-transmitting plate 11 through glue, the outer circle of the circuit board 2 is bonded with the back of the light-transmitting plate 11 through glue, the back of the shell 1 is provided with a groove 8 for placing power supply and wire, the groove 8 is provided with a cover 12, a shallow glue groove 13 is arranged in the groove 8, the lower end of the cover 12 is provided with a long insertion piece 14 capable of being inserted into the shallow glue groove 13, the long insertion piece 14 is provided with a terminal block 9, the terminal block 9 is provided with a wire hole 10, and the shell 1 is provided with an opening 15 for accommodating the terminal block 9.

[0030] In the embodiment, glue is injected into the shallow glue groove 13, then the cover 12 is covered to make the long insertion piece 14 inserted into the shallow insertion groove and bonded with the glue, so as to ensure the sealing property of the groove 8.

[0031] Referring to Figure 5As shown, the back of the shell 1 is adhered with a light-transmitting plate 11 through glue, the outer circle of the circuit board 2 is adhered with the back of the light-transmitting plate 11 through glue, the back of the shell 1 is provided with a recess 8 for placing power supply and electric wire, the recess 8 is provided with a cover 12, a circle of shallow glue groove 13 is arranged in the recess 8, the cover 12 is provided with a pressing plate 16 which is pressed on the shallow glue groove 13, the cover 12 is provided with a wiring holder 9, the wiring holder 9 is provided with a wire hole 10, and the shell 1 is provided with an opening 15 for inserting the wiring holder 9.

[0032] In the embodiment, glue is injected into the shallow glue groove 13, then the cover 12 is covered to make the pressing plate 16 be pressed on the shallow glue groove 13 and be adhered with the glue, so that the sealing property of the recess 8 is ensured, the setting of the pressing plate 16 has a larger contact area with the glue, and the sealing property is better.

[0033] Referring to Figure 6 As shown, the back of the shell 1 is adhered with a light-transmitting plate 11 through glue, the outer circle of the circuit board 2 is adhered with the back of the light-transmitting plate 11 through glue, the back of the shell 1 is provided with a recess 8 for placing power supply and electric wire, the recess 8 is provided with a cover 12, a circle of shallow glue groove 13 is arranged in the recess 8, the cover 12 is provided with a pressing plate 16 which is pressed on the shallow glue groove 13, the cover 12 is provided with a wiring holder 9, the wiring holder 9 is provided with a wire hole 10, and the shell 1 is provided with an opening 15 for inserting the wiring holder 9.

[0034] In the embodiment, glue is injected into the shallow glue groove 13, then the cover 12 is covered to make the pressing plate 16 be pressed on the shallow glue groove 13 and be adhered with the glue, so that the sealing property of the recess 8 is ensured, the setting of the pressing plate 16 has a larger contact area with the glue, and the sealing property is better.

[0035] The four embodiments provide different shell 1 assembly structures to meet different requirements and have stronger applicability.

[0036] In the first, second and third embodiments, the shell 1 is provided with a surrounding plate 19 which surrounds the heat dissipation structure, the surrounding plate 19 is provided with air holes 20 which are communicated with the heat dissipation structure, the surrounding plate 19 and the heat dissipation fin 5 have a gap, and the two sides of the surrounding plate 19 away from the air holes 20 are provided with drainage holes 22, so that rainwater can be drained off in rainy days to prevent water accumulation in the surrounding plate 19, the heat dissipation structure on the back of the shell 1 is surrounded by a circle of surrounding plates 19, which effectively prevents the heat dissipation structure from hurting people or objects, protects the heat dissipation structure, is safer and more beautiful, the heat dissipation structure can be made thinner after being protected by the surrounding plate 19, which reduces the cost, the setting of the air holes 20 is beneficial to the formation of convection between the heat dissipation structure and the outside to ensure the heat dissipation effect, and the gap avoids the blockage of the first and second air ducts to ensure the normal heat dissipation of the first and second air ducts.

[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A novel ultra-thin floodlight, comprising a housing and a circuit board disposed within the housing, the circuit board having a plurality of LED beads, characterized in that: The shell has a hollow part, the circuit board is arranged on the back of the shell, and the back of the circuit board is provided with a heat dissipation structure, all the lamp beads are located in the hollow part, the heat dissipation structure comprises a heat dissipation fin bonded with the circuit board, the heat dissipation fin is provided with a plurality of upward protruding ribs, a first ventilation channel is formed between adjacent ribs, and a heat dissipation through hole is arranged along the length direction of the rib, and the heat dissipation through hole forms a second ventilation channel.

2. A novel ultra-thin downlight according to claim 1, characterized in that: The outer circle of the circuit board is bonded with the back of the shell through glue, the front of the shell is provided with a groove for placing a power supply and wires, the shell is provided with a wire holder inserted into the groove, the wire holder is provided with a wire hole, and the front of the shell is bonded with a light-transmitting plate covering the hollow part and the groove through glue.

3. A novel ultra-thin downlight according to claim 2, characterized in that: The part of the light-transmitting plate corresponding to the groove is coated with colored paint that can cover the groove and the internal structure, the shell is detachably connected with a ring panel exposing the hollow part, the shell is provided with a plurality of clamping grooves, and the ring panel is provided with buckles clamped into the clamping grooves.

4. The novel ultra-thin downlight according to claim 1, characterized in that: The back of the shell is bonded with a light-transmitting plate through glue, the outer circle of the circuit board is bonded with the back of the light-transmitting plate through glue, the back of the shell is provided with a groove for placing a power supply and wires, and the groove is provided with a cover.

5. The novel ultra-thin downlight according to claim 4, characterized in that: The groove is provided with a shallow glue groove, the lower end of the cover is provided with a long insertion piece inserted into the shallow glue groove, the long insertion piece is provided with a wire holder, and the wire holder is provided with a wire hole.

6. A novel ultra-thin downlight according to claim 4, characterized in that: The groove is provided with a shallow glue groove, the lower end of the cover is provided with a long insertion piece inserted into the shallow glue groove, the long insertion piece is provided with a wire holder, and the wire holder is provided with a wire hole.

7. The novel ultra-thin downlight according to claim 4, characterized in that: The groove is provided with a deep glue groove, the lower end of the cover is provided with a short insertion piece inserted into the deep glue groove, the shell is provided with a wire holder, and the wire holder is provided with a wire hole.

8. A novel ultra-thin light projecting lamp according to any one of claims 2-5, characterized in that: The shell is provided with a surrounding plate surrounding the heat dissipation structure, the surrounding plate is provided with air holes communicating with the heat dissipation structure, the surrounding plate and the heat dissipation fin have a gap, and the two sides of the surrounding plate away from the air holes are provided with drainage holes.

9. The novel ultra-thin downlight according to claim 1, characterized in that: The heat dissipation fin is an integrally formed metal sheet, the ribs are straight strips or wavy, the shell is a non-metal frame, the circuit board is an aluminum substrate, the aluminum substrate comprises a conductive layer, an insulating layer and an aluminum plate from top to bottom, and the heat dissipation fin and the aluminum plate are welded by laser.

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